tree c7ba229007acf58d5b04763177aa04b5ddca98d9
parent 2dbd3cac87250a0d44e07acc86c4224a08522709
author Helge Deller <deller@gmx.de> 1368221041 +0000
committer Helge Deller <deller@gmx.de> 1368299415 +0200

parisc: implement irq stacks - part 2 (v2)

This patch fixes few build issues which were introduced with the last
irq stack patch, e.g. the combination of stack overflow check and irq
stack.

Furthermore we now do proper locking and change the irq bh handler
to use the irq stack as well.

In /proc/interrupts one now can monitor how huge the irq stack has grown
and how often it was preferred over the kernel stack.

IRQ stacks are now enabled by default just to make sure that we not
overflow the kernel stack by accident.

Signed-off-by: Helge Deller <deller@gmx.de>